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Finding the Fourth Proportional to 478,797.16, 716,078.22 and 425,860.82

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Solution

The fourth proportional to 478,797.16, 716,078.22 and 425,860.82 is: 636,907.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,797.16 : 716,078.22 = 425,860.82 : x
  2. Step 2: Convert to fraction form
    478,797.16/716,078.22 = 425,860.82/x
  3. Step 3: Cross multiply
    478,797.16x = 716,078.22 × 425,860.82
  4. Step 4: Simplify right side
    478,797.16x = 304,949,657,953.34
  5. Step 5: Solve for x
    x = 304,949,657,953.34/478,797.16
  6. Step 6: Final answer
    x = 636,907.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.